Fix README typo (GoogleChrome#992)

Author: jpmedley

functional-samples/tutorial.google-analytics/README.md

@@ -13,6 +13,6 @@ This example demonstrates how to track extension events in Google Analytics 4 us
 3. Load this directory in Chrome as an [unpacked extension](https://developer.chrome.com/docs/extensions/mv3/getstarted/development-basics/#load-unpacked).
 4. Click the extension icon to open the extension popup and click the button to generate a few analytics events.
    <img src="https://github-production-user-asset-6210df.s3.amazonaws.com/380472/240995103-87cb61a3-d3f9-44d6-9dfa-0e3bf0c11a1e.png" alt="Extension popup" width="200"/>
-5. Checkout out the [real-time report](https://support.google.com/analytics/answer/1638635) to see how the events surface in Google Analytics.
+5. Check out the [real-time report](https://support.google.com/analytics/answer/1638635) to see how the events surface in Google Analytics.
 
 ![Google Analytics real-time report](https://wd.imgix.net/image/6hHqS5auVgWhN0cQNQztaJx5w4M2/AQqSJb9VqalWfrQ6xSXM.png?auto=format&w=400)